build

* Update CHANGELOG.md

* Update package.json

* Update README.md

.github/CODEOWNERS

@@ -1 +1 @@
-* @Azure/aksatlanta
+* @Azure/aks-atlanta

.github/ISSUE_TEMPLATE/bugReportForm.yml

@@ -0,0 +1,36 @@
+name: Bug Report
+description: File a bug report specifying all inputs you provided for the action, we will respond to this thread with any questions.
+title: 'Bug: '
+labels: ['bug', 'triage']
+assignees: '@Azure/aks-atlanta'
+body:
+   - type: textarea
+     id: What-happened
+     attributes:
+        label: What happened?
+        description: Tell us what happened and how is it different from the expected?
+        placeholder: Tell us what you see!
+     validations:
+        required: true
+   - type: checkboxes
+     id: Version
+     attributes:
+        label: Version
+        options:
+           - label: I am using the latest version
+             required: true
+   - type: input
+     id: Runner
+     attributes:
+        label: Runner
+        description: What runner are you using?
+        placeholder: Mention the runner info (self-hosted, operating system)
+     validations:
+        required: true
+   - type: textarea
+     id: Logs
+     attributes:
+        label: Relevant log output
+        description: Run in debug mode for the most verbose logs. Please feel free to attach a screenshot of the logs
+     validations:
+        required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,6 @@
+blank_issues_enabled: false
+contact_links:
+   - name: GitHub Action "setup-helm" Support
+     url: https://github.com/Azure/setup-helm
+     security: https://github.com/Azure/setup-helm/blob/main/SECURITY.md
+     about: Please ask and answer questions here.

.github/ISSUE_TEMPLATE/featureRequestForm.yml

@@ -0,0 +1,13 @@
+name: Feature Request
+description: File a Feature Request form, we will respond to this thread with any questions.
+title: 'Feature Request: '
+labels: ['Feature']
+assignees: '@Azure/aks-atlanta'
+body:
+   - type: textarea
+     id: Feature_request
+     attributes:
+        label: Feature request
+        description: Provide example functionality and links to relevant docs
+     validations:
+        required: true

.github/ISSUE_TEMPLATE/issue--bug-report---feature-request.md

@@ -4,7 +4,4 @@ about: Create a report to help us improve
 title: ''
 labels: need-to-triage
 assignees: ''
-
 ---
-
-

.github/workflows/defaultLabels.yml

@@ -1,36 +1,35 @@
 name: setting-default-labels
 
-# Controls when the action will run. 
+# Controls when the action will run.
 on:
-  schedule:
-  - cron: "0 0/3 * * *"
+   schedule:
+      - cron: '0 0/3 * * *'
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
-  build:
-    # The type of runner that the job will run on
-    runs-on: ubuntu-latest
+   build:
+      # The type of runner that the job will run on
+      runs-on: ubuntu-latest
 
-    # Steps represent a sequence of tasks that will be executed as part of the job
-    steps:
-          
-      - uses: actions/stale@v3
-        name: Setting issue as idle
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          stale-issue-message: 'This issue is idle because it has been open for 14 days with no activity.'
-          stale-issue-label: 'idle'
-          days-before-stale: 14
-          days-before-close: -1
-          operations-per-run: 100
-          exempt-issue-labels: 'backlog'
-          
-      - uses: actions/stale@v3
-        name: Setting PR as idle
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          stale-pr-message: 'This PR is idle because it has been open for 14 days with no activity.'
-          stale-pr-label: 'idle'
-          days-before-stale: 14
-          days-before-close: -1
-          operations-per-run: 100
+      # Steps represent a sequence of tasks that will be executed as part of the job
+      steps:
+         - uses: actions/stale@v9
+           name: Setting issue as idle
+           with:
+              repo-token: ${{ secrets.GITHUB_TOKEN }}
+              stale-issue-message: 'This issue is idle because it has been open for 14 days with no activity.'
+              stale-issue-label: 'idle'
+              days-before-stale: 14
+              days-before-close: -1
+              operations-per-run: 100
+              exempt-issue-labels: 'backlog'
+
+         - uses: actions/stale@v9
+           name: Setting PR as idle
+           with:
+              repo-token: ${{ secrets.GITHUB_TOKEN }}
+              stale-pr-message: 'This PR is idle because it has been open for 14 days with no activity.'
+              stale-pr-label: 'idle'
+              days-before-stale: 14
+              days-before-close: -1
+              operations-per-run: 100

.github/workflows/integration-tests.yml

@@ -1,65 +1,87 @@
-name: "Trigger Integration tests"
+name: 'Trigger Integration tests'
 on:
-  pull_request:
-    branches:
-      - master
-      - 'releases/*'
-jobs: 
-    trigger-integration-tests:
+   pull_request:
+      branches:
+         - main
+         - 'releases/*'
+jobs:
+   trigger-integration-tests:
       name: Trigger Integration tests
       runs-on: ubuntu-latest
       env:
-        HELM_3_8_0: "v3.8.0"
-        HELM_3_7_2: "v3.7.2"
-        HELM_3_5_0: "v3.5.0"
-        PR_BASE_REF: ${{ github.event.pull_request.base.ref }}
+         HELM_3_8_0: 'v3.8.0'
+         HELM_3_7_2: 'v3.7.2'
+         HELM_NO_V: '3.5.0'
+         PR_BASE_REF: ${{ github.event.pull_request.base.ref }}
       steps:
-        - name: Check out repository
-          uses: actions/checkout@v2
-        - name: npm install and build
-          id: action-npm-build
-          run: |
-            echo $PR_BASE_REF
-            if [[ $PR_BASE_REF != releases/* ]]; then
-              npm install
-              npm run build
-            fi
-        - name: Setup helm
-          uses: ./
-          with: 
-            version: ${{ env.HELM_3_8_0 }}
-        - name: Validate helm 3.8.0
-          run: |
-            if [[ $(helm version) != *$HELM_3_8_0* ]]; then
-              echo "HELM VERSION INCORRECT: HELM VERSION DOES NOT CONTAIN v3.8.0"
-              echo "HELM VERSION OUTPUT: $(helm version)"
-              exit 1
-            else
-              echo "HELM VERSION $HELM_3_8_0 INSTALLED SUCCESSFULLY"
-            fi
-        - name: Setup helm 3.7.2
-          uses: ./
-          with: 
-            version: ${{ env.HELM_3_7_2 }}
-        - name: Validate 3.7.2
-          run: |
-            if [[ $(helm version) != *$HELM_3_7_2* ]]; then
-              echo "HELM VERSION INCORRECT: HELM VERSION DOES NOT CONTAIN v3.7.2"
-              echo "HELM VERSION OUTPUT: $(helm version)"
-              exit 1
-            else
-              echo "HELM VERSION $HELM_3_7_2 INSTALLED SUCCESSFULLY"
-            fi
-        - name: Setup helm 3.5.0
-          uses: ./
-          with: 
-            version: ${{ env.HELM_3_5_0 }}
-        - name: Validate 3.5.0
-          run: |
-            if [[ $(helm version) != *$HELM_3_5_0* ]]; then
-              echo "HELM VERSION INCORRECT: HELM VERSION DOES NOT CONTAIN v3.5.0"
-              echo "HELM VERSION OUTPUT: $(helm version)"
-              exit 1
-            else
-              echo "HELM VERSION $HELM_3_5_0 INSTALLED SUCCESSFULLY"
-            fi
+         - name: Check out repository
+           uses: actions/checkout@v4
+         - name: npm install and build
+           id: action-npm-build
+           run: |
+              echo $PR_BASE_REF
+              if [[ $PR_BASE_REF != releases/* ]]; then
+                npm install
+                npm run build
+              fi
+         - name: Setup helm
+           uses: ./
+           with:
+              version: ${{ env.HELM_3_8_0 }}
+         - name: Validate helm 3.8.0
+           run: |
+              if [[ $(helm version) != *$HELM_3_8_0* ]]; then
+                echo "HELM VERSION INCORRECT: HELM VERSION DOES NOT CONTAIN v3.8.0"
+                echo "HELM VERSION OUTPUT: $(helm version)"
+                exit 1
+              else
+                echo "HELM VERSION $HELM_3_8_0 INSTALLED SUCCESSFULLY"
+              fi
+         - name: Setup helm 3.7.2
+           uses: ./
+           with:
+              version: ${{ env.HELM_3_7_2 }}
+         - name: Validate 3.7.2
+           run: |
+              if [[ $(helm version) != *$HELM_3_7_2* ]]; then
+                echo "HELM VERSION INCORRECT: HELM VERSION DOES NOT CONTAIN v3.7.2"
+                echo "HELM VERSION OUTPUT: $(helm version)"
+                exit 1
+              else
+                echo "HELM VERSION $HELM_3_7_2 INSTALLED SUCCESSFULLY"
+              fi
+         - name: Setup helm 3.5.0 with no v in version
+           uses: ./
+           with:
+              version: ${{ env.HELM_NO_V }}
+         - name: Validate 3.5.0 without v in version
+           run: |
+              if [[ $(helm version) != *$HELM_NO_V* ]]; then
+                echo "HELM VERSION INCORRECT: HELM VERSION DOES NOT CONTAIN v3.5.0"
+                echo "HELM VERSION OUTPUT: $(helm version)"
+                exit 1
+              else
+                echo "HELM VERSION $HELM_3_5_0 INSTALLED SUCCESSFULLY"
+              fi
+         - name: Setup helm latest version
+           uses: ./
+           with:
+              version: latest
+              token: ${{ secrets.GITHUB_TOKEN }}
+         - name: Validate latest
+           env:
+              GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+           run: |
+              HELM_LATEST=$(gh release list \
+                --repo helm/helm \
+                --exclude-drafts \
+                --exclude-pre-releases \
+                --limit 1 | awk '{print $4}')
+
+              if [[ $(helm version) != *$HELM_LATEST* ]]; then
+                echo "HELM VERSION INCORRECT: HELM VERSION DOES NOT CONTAIN $HELM_LATEST"
+                echo "HELM VERSION OUTPUT: $(helm version)"
+                exit 1
+              else
+                echo "HELM VERSION $HELM_LATEST INSTALLED SUCCESSFULLY"
+              fi

.github/workflows/prettify-code.yml

@@ -0,0 +1,18 @@
+name: 'Run prettify'
+on:
+   pull_request:
+   push:
+      branches: [main]
+
+jobs:
+   prettier:
+      name: Prettier Check
+      runs-on: ubuntu-latest
+      steps:
+         - name: Checkout Repository
+           uses: actions/checkout@v4
+
+         - name: Enforce Prettier
+           uses: actionsx/prettier@v3
+           with:
+              args: --check .

.github/workflows/release-pr.yml

@@ -1,55 +1,18 @@
-name: "Create release PR"
+name: Release Project
 
 on:
-  workflow_dispatch:
-    inputs:
-      release:
-        description: "Define release version (ex: v1, v2, v3)"
-        required: true
+   push:
+      branches:
+         - main
+      paths:
+         - CHANGELOG.md
+   workflow_dispatch:
 
 jobs:
-  createPullRequest:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-      - name: Check if remote branch exists
-        env:
-          BRANCH: releases/${{ github.event.inputs.release }}
-        run: |
-          echo "##[set-output name=exists;]$(echo $(if [[ -z $(git ls-remote --heads origin ${BRANCH}) ]]; then echo false; else echo true; fi;))"
-        id: extract-branch-status
-      # these two only need to occur if the branch exists
-      - name: Checkout proper branch
-        if: ${{ steps.extract-branch-status.outputs.exists == 'true' }}
-        env:
-          BRANCH: releases/${{ github.event.inputs.release }}
-        run: git checkout ${BRANCH}
-      - name: Reset promotion branch
-        if: ${{ steps.extract-branch-status.outputs.exists == 'true' }}
-        run: |
-          git fetch origin master:master
-          git reset --hard master
-      - name: Install packages
-        run: |
-          rm -rf node_modules/
-          npm install --no-bin-links
-          npm run build
-      - name: Remove node_modules from gitignore
-        run: |
-          sed -i '/node_modules/d' ./.gitignore
-      - name: Create branch
-        uses: peterjgrainger/action-create-branch@v2.0.1
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          branch: releases/${{ github.event.inputs.release }}
-      - name: Create pull request
-        uses: peter-evans/create-pull-request@v3
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          commit-message: Add node modules and new code for release
-          title: ${{ github.event.inputs.release }} new release
-          base: releases/${{ github.event.inputs.release }}
-          branch: create-release
+   release:
+      permissions:
+         actions: read
+         contents: write
+      uses: Azure/action-release-workflows/.github/workflows/release_js_project.yaml@v1
+      with:
+         changelogPath: ./CHANGELOG.md

.github/workflows/tag-and-draft.yml

@@ -0,0 +1,10 @@
+name: Tag and create release draft
+
+on:
+   push:
+      branches:
+         - releases/*
+
+jobs:
+   tag-and-release:
+      uses: OliverMKing/javascript-release-workflow/.github/workflows/tag-and-release.yml@main

.github/workflows/tag-and-release.yml

@@ -1,77 +0,0 @@
-name: "Tag and create release draft"
-
-on:
-  push:
-    branches:
-      - releases/*
-
-jobs:
-  gh_tagged_release:
-    runs-on: "ubuntu-latest"
-
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-      - name: Test release
-        run: |
-          sudo npm install n 
-          sudo n latest
-          npm test
-      - name: Get branch ending
-        run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF##*/} | sed 's:.*/::')"
-        id: extract-branch
-      - name: Get tags
-        run: |
-          echo "##[set-output name=tags;]$(echo $(git tag))"
-        id: extract-tags
-      - name: Get latest tag
-        uses: actions/github-script@v5
-        env:
-          TAGS: ${{ steps.extract-tags.outputs.tags }}
-          BRANCH: ${{ steps.extract-branch.outputs.branch }}
-        with:
-          script: |
-            const tags = process.env["TAGS"]
-              .split(" ")
-              .map((x) => x.trim());
-            const branch = process.env["BRANCH"];
-            const splitTag = (x) =>
-              x
-                .substring(branch.length + 1)
-                .split(".")
-                .map((x) => Number(x));
-            function compareTags(nums1, nums2, position = 0) {
-              if (nums1.length < position && nums2.length < position) return nums2;
-              const num1 = splitTag(nums1)[position] || 0;
-              const num2 = splitTag(nums2)[position] || 0;
-              if (num1 === num2) return compareTags(nums1, nums2, position + 1);
-              else if (num1 > num2) return nums1;
-              else return nums2;
-            }
-            const branchTags = tags.filter((tag) => tag.startsWith(branch));
-            if (branchTags.length < 1) return branch + ".-1"
-            return branchTags.reduce((prev, curr) => compareTags(prev, curr));
-          result-encoding: string
-        id: get-latest-tag
-      - name: Get new tag
-        uses: actions/github-script@v5
-        env:
-          PREV: ${{ steps.get-latest-tag.outputs.result }}
-        with:
-          script: |
-            let version = process.env["PREV"]
-            if (!version.includes(".")) version += ".0"; // case of v1 or v2
-            const prefix = /^([a-zA-Z]+)/.exec(version)[0];
-            const numbers = version.substring(prefix.length);
-            let split = numbers.split(".");
-            split[split.length - 1] = parseInt(split[split.length - 1]) + 1;
-            return prefix + split.join(".");
-          result-encoding: string
-        id: get-new-tag
-      - uses: "marvinpinto/action-automatic-releases@v1.2.1"
-        with:
-          title: ${{ steps.get-new-tag.outputs.result }} release
-          automatic_release_tag: ${{ steps.get-new-tag.outputs.result }}
-          repo_token: "${{ secrets.GITHUB_TOKEN }}"
-          draft: true

.github/workflows/unit-tests.yml

@@ -1,21 +1,21 @@
-name: "Run unit tests."
+name: 'Run unit tests.'
 on: # rebuild any PRs and main branch changes
-  pull_request:
-    branches:
-      - master
-      - 'releases/*'
-  push:
-    branches:
-      - master
-      - 'releases/*'
+   pull_request:
+      branches:
+         - main
+         - 'releases/*'
+   push:
+      branches:
+         - main
+         - 'releases/*'
 
 jobs:
-  build: # make sure build/ci works properly
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v1
-    
-    - name: Run L0 tests.
-      run: |
-        npm install
-        npm test
+   build: # make sure build/ci works properly
+      runs-on: ubuntu-latest
+      steps:
+         - uses: actions/checkout@v4
+
+         - name: Run L0 tests.
+           run: |
+              npm install
+              npm test

.gitignore

@@ -11,8 +11,6 @@ pids
 *.seed
 *.pid.lock
 
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
 
 # Coverage directory used by tools like istanbul
 coverage
@@ -62,3 +60,5 @@ typings/
 
 node_modules
 coverage
+
+# Transpiled JS

.prettierignore

@@ -0,0 +1,4 @@
+# dependencies
+/node_modules
+coverage
+/lib

.prettierrc.json

@@ -0,0 +1,8 @@
+{
+   "trailingComma": "none",
+   "bracketSpacing": false,
+   "semi": false,
+   "tabWidth": 3,
+   "singleQuote": true,
+   "printWidth": 80
+}

CHANGELOG.md

@@ -0,0 +1,13 @@
+# Change Log
+
+## [4.2.0] - 2024-04-15
+
+-  #124 Fix OS detection and download OS-native archive extension
+
+## [4.1.0] - 2024-03-01
+
+-  #130 switches to use Helm published file to read latest version instead of using GitHub releases
+
+## [4.0.0] - 2024-02-12
+
+-  #121 update to node20 as node16 is deprecated

CODE_OF_CONDUCT.md

@@ -1,9 +1,9 @@
-# Microsoft Open Source Code of Conduct
-
-This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
-
-Resources:
-
-- [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/)
-- [Microsoft Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/)
-- Contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with questions or concerns
+# Microsoft Open Source Code of Conduct
+
+This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
+
+Resources:
+
+-  [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/)
+-  [Microsoft Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/)
+-  Contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with questions or concerns

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 # Contributing
 
-This project welcomes contributions and suggestions.  Most contributions require you to agree to a
+This project welcomes contributions and suggestions. Most contributions require you to agree to a
 Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us
 the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.
 

README.md

@@ -1,29 +1,38 @@
-# Setup Helm
-Install a specific version of helm binary on the runner.
-## Example
-
-Acceptable values are latest or any semantic version string like v2.16.7 Use this action in workflow to define which version of helm will be used.
-
-```yaml
-- uses: azure/setup-helm@v1
-  with:
-    version: '<version>' # default is latest stable
-  id: install
-```
-
-The cached helm binary path is prepended to the PATH environment variable as well as stored in the helm-path output variable.
-Refer to the action metadata file for details about all the inputs https://github.com/Azure/setup-helm/blob/master/action.yml
-
-# Contributing
-
-This project welcomes contributions and suggestions.  Most contributions require you to agree to a
-Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us
-the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.
-
-When you submit a pull request, a CLA bot will automatically determine whether you need to provide
-a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions
-provided by the bot. You will only need to do this once across all repos using our CLA.
-
-This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
-For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
-contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
+# Setup Helm
+
+Install a specific version of helm binary on the runner.
+
+## Example
+
+Acceptable values are latest or any semantic version string like v3.5.0 Use this action in workflow to define which version of helm will be used. v2+ of this action only support Helm3.
+
+```yaml
+- uses: azure/setup-helm@v4.2.0
+  with:
+     version: '<version>' # default is latest (stable)
+  id: install
+```
+
+> [!NOTE]
+> If something goes wrong with fetching the latest version the action will use the hardcoded default stable version (currently v3.13.3). If you rely on a certain version higher than the default, you should explicitly use that version instead of latest.
+
+The cached helm binary path is prepended to the PATH environment variable as well as stored in the helm-path output variable.
+Refer to the action metadata file for details about all the inputs https://github.com/Azure/setup-helm/blob/master/action.yml
+
+## Contributing
+
+This project welcomes contributions and suggestions. Most contributions require you to agree to a
+Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us
+the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.
+
+When you submit a pull request, a CLA bot will automatically determine whether you need to provide
+a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions
+provided by the bot. You will only need to do this once across all repos using our CLA.
+
+This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
+For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or
+contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
+
+## Support
+
+setup-helm is an open source project that is [**not** covered by the Microsoft Azure support policy](https://support.microsoft.com/en-us/help/2941892/support-for-linux-and-open-source-technology-in-azure). [Please search open issues here](https://github.com/Azure/setup-helm/issues), and if your issue isn't already represented please [open a new one](https://github.com/Azure/setup-helm/issues/new/choose). The project maintainers will respond to the best of their abilities.

SECURITY.md

@@ -1,41 +1,41 @@
-<!-- BEGIN MICROSOFT SECURITY.MD V0.0.2 BLOCK -->
-
-## Security
-
-Microsoft takes the security of our software products and services seriously, which includes all source code repositories managed through our GitHub organizations, which include [Microsoft](https://github.com/Microsoft), [Azure](https://github.com/Azure), [DotNet](https://github.com/dotnet), [AspNet](https://github.com/aspnet), [Xamarin](https://github.com/xamarin), and [many more](https://opensource.microsoft.com/).
-
-If you believe you have found a security vulnerability in any Microsoft-owned repository that meets Microsoft's [definition](https://docs.microsoft.com/en-us/previous-versions/tn-archive/cc751383(v=technet.10)) of a security vulnerability, please report it to us as described below.
-
-## Reporting Security Issues
-
-**Please do not report security vulnerabilities through public GitHub issues.**
-
-Instead, please report them to the Microsoft Security Response Center (MSRC) at [https://msrc.microsoft.com/create-report](https://msrc.microsoft.com/create-report).
-
-If you prefer to submit without logging in, send email to [secure@microsoft.com](mailto:secure@microsoft.com).  If possible, encrypt your message with our PGP key; please download it from the the [Microsoft Security Response Center PGP Key page](https://www.microsoft.com/en-us/msrc/pgp-key-msrc).
-
-You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your original message. Additional information can be found at [microsoft.com/msrc](https://www.microsoft.com/msrc).
-
-Please include the requested information listed below (as much as you can provide) to help us better understand the nature and scope of the possible issue:
-
-  * Type of issue (e.g. buffer overflow, SQL injection, cross-site scripting, etc.)
-  * Full paths of source file(s) related to the manifestation of the issue
-  * The location of the affected source code (tag/branch/commit or direct URL)
-  * Any special configuration required to reproduce the issue
-  * Step-by-step instructions to reproduce the issue
-  * Proof-of-concept or exploit code (if possible)
-  * Impact of the issue, including how an attacker might exploit the issue
-
-This information will help us triage your report more quickly.
-
-If you are reporting for a bug bounty, more complete reports can contribute to a higher bounty award. Please visit our [Microsoft Bug Bounty Program](https://microsoft.com/msrc/bounty) page for more details about our active programs.
-
-## Preferred Languages
-
-We prefer all communications to be in English.
-
-## Policy
-
-Microsoft follows the principle of [Coordinated Vulnerability Disclosure](https://www.microsoft.com/en-us/msrc/cvd).
-
-<!-- END MICROSOFT SECURITY.MD BLOCK -->
+<!-- BEGIN MICROSOFT SECURITY.MD V0.0.2 BLOCK -->
+
+## Security
+
+Microsoft takes the security of our software products and services seriously, which includes all source code repositories managed through our GitHub organizations, which include [Microsoft](https://github.com/Microsoft), [Azure](https://github.com/Azure), [DotNet](https://github.com/dotnet), [AspNet](https://github.com/aspnet), [Xamarin](https://github.com/xamarin), and [many more](https://opensource.microsoft.com/).
+
+If you believe you have found a security vulnerability in any Microsoft-owned repository that meets Microsoft's [definition](<https://docs.microsoft.com/en-us/previous-versions/tn-archive/cc751383(v=technet.10)>) of a security vulnerability, please report it to us as described below.
+
+## Reporting Security Issues
+
+**Please do not report security vulnerabilities through public GitHub issues.**
+
+Instead, please report them to the Microsoft Security Response Center (MSRC) at [https://msrc.microsoft.com/create-report](https://msrc.microsoft.com/create-report).
+
+If you prefer to submit without logging in, send email to [secure@microsoft.com](mailto:secure@microsoft.com). If possible, encrypt your message with our PGP key; please download it from the the [Microsoft Security Response Center PGP Key page](https://www.microsoft.com/en-us/msrc/pgp-key-msrc).
+
+You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your original message. Additional information can be found at [microsoft.com/msrc](https://www.microsoft.com/msrc).
+
+Please include the requested information listed below (as much as you can provide) to help us better understand the nature and scope of the possible issue:
+
+-  Type of issue (e.g. buffer overflow, SQL injection, cross-site scripting, etc.)
+-  Full paths of source file(s) related to the manifestation of the issue
+-  The location of the affected source code (tag/branch/commit or direct URL)
+-  Any special configuration required to reproduce the issue
+-  Step-by-step instructions to reproduce the issue
+-  Proof-of-concept or exploit code (if possible)
+-  Impact of the issue, including how an attacker might exploit the issue
+
+This information will help us triage your report more quickly.
+
+If you are reporting for a bug bounty, more complete reports can contribute to a higher bounty award. Please visit our [Microsoft Bug Bounty Program](https://microsoft.com/msrc/bounty) page for more details about our active programs.
+
+## Preferred Languages
+
+We prefer all communications to be in English.
+
+## Policy
+
+Microsoft follows the principle of [Coordinated Vulnerability Disclosure](https://www.microsoft.com/en-us/msrc/cvd).
+
+<!-- END MICROSOFT SECURITY.MD BLOCK -->

__tests__/run.test.ts

@@ -1,174 +0,0 @@
-import * as run from '../src/run'
-import * as os from 'os';
-import * as toolCache from '@actions/tool-cache';
-import * as fs from 'fs';
-import * as path from 'path';
-import * as core from '@actions/core';
-
-describe('run.ts', () => {
-    test('getExecutableExtension() - return .exe when os is Windows', () => {
-        jest.spyOn(os, 'type').mockReturnValue('Windows_NT');
-
-        expect(run.getExecutableExtension()).toBe('.exe');
-        expect(os.type).toBeCalled();         
-    });
-
-    test('getExecutableExtension() - return empty string for non-windows OS', () => {
-        jest.spyOn(os, 'type').mockReturnValue('Darwin');
-
-        expect(run.getExecutableExtension()).toBe('');         
-        expect(os.type).toBeCalled();         
-    });
-
-    test('getHelmDownloadURL() - return the URL to download helm for Linux', () => {
-        jest.spyOn(os, 'type').mockReturnValue('Linux');
-        const kubectlLinuxUrl = 'https://get.helm.sh/helm-v3.8.0-linux-amd64.zip'
-
-        expect(run.getHelmDownloadURL('v3.8.0')).toBe(kubectlLinuxUrl);
-        expect(os.type).toBeCalled();         
-    });
-
-    test('getHelmDownloadURL() - return the URL to download helm for Darwin', () => {
-        jest.spyOn(os, 'type').mockReturnValue('Darwin');
-        const kubectlDarwinUrl = 'https://get.helm.sh/helm-v3.8.0-darwin-amd64.zip'
-
-        expect(run.getHelmDownloadURL('v3.8.0')).toBe(kubectlDarwinUrl);
-        expect(os.type).toBeCalled();         
-    });
-
-    test('getHelmDownloadURL() - return the URL to download helm for Windows', () => {
-        jest.spyOn(os, 'type').mockReturnValue('Windows_NT');
-
-        const kubectlWindowsUrl = 'https://get.helm.sh/helm-v3.8.0-windows-amd64.zip'
-        expect(run.getHelmDownloadURL('v3.8.0')).toBe(kubectlWindowsUrl);
-        expect(os.type).toBeCalled();         
-    });
-
-    test('getLatestHelmVersion() - return the latest version of HELM', async () => {
-        try{
-            expect(await run.getLatestHelmVersion()).toBe("v3.8.0");
-        } catch (e){
-            return e;
-        }
-    });
-
-    test('walkSync() - return path to the all files matching fileToFind in dir', () => {
-        jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
-            if (file == 'mainFolder') return ['file1' as unknown as fs.Dirent, 'file2' as unknown as fs.Dirent, 'folder1' as unknown as fs.Dirent, 'folder2' as unknown as fs.Dirent];
-            if (file == path.join('mainFolder', 'folder1')) return ['file11' as unknown as fs.Dirent, 'file12' as unknown as fs.Dirent];
-            if (file == path.join('mainFolder', 'folder2')) return ['file21' as unknown as fs.Dirent, 'file22' as unknown as fs.Dirent];
-        });
-        jest.spyOn(core, 'debug').mockImplementation();
-        jest.spyOn(fs, 'statSync').mockImplementation((file) => {
-            const isDirectory = (file as string).toLowerCase().indexOf('file') == -1 ? true: false
-            return { isDirectory: () => isDirectory } as fs.Stats;
-        });
-
-        expect(run.walkSync('mainFolder', null, 'file21')).toEqual([path.join('mainFolder', 'folder2', 'file21')]);
-        expect(fs.readdirSync).toBeCalledTimes(3);
-        expect(fs.statSync).toBeCalledTimes(8);
-    });
-
-    test('walkSync() - return empty array if no file with name fileToFind exists', () => {
-        jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
-            if (file == 'mainFolder') return ['file1' as unknown as fs.Dirent, 'file2' as unknown as fs.Dirent, 'folder1' as unknown as fs.Dirent, 'folder2' as unknown as fs.Dirent];
-            if (file == path.join('mainFolder', 'folder1')) return ['file11' as unknown as fs.Dirent, 'file12' as unknown as fs.Dirent];
-            if (file == path.join('mainFolder', 'folder2')) return ['file21' as unknown as fs.Dirent, 'file22' as unknown as fs.Dirent];
-        });
-        jest.spyOn(core, 'debug').mockImplementation();
-        jest.spyOn(fs, 'statSync').mockImplementation((file) => {
-            const isDirectory = (file as string).toLowerCase().indexOf('file') == -1 ? true: false
-            return { isDirectory: () => isDirectory } as fs.Stats;
-        });
-
-        expect(run.walkSync('mainFolder', null, 'helm.exe')).toEqual([]);
-        expect(fs.readdirSync).toBeCalledTimes(3);
-        expect(fs.statSync).toBeCalledTimes(8);
-    });
-
-    test('findHelm() - change access permissions and find the helm in given directory', () => {
-        jest.spyOn(fs, 'chmodSync').mockImplementation(() => {});
-        jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
-            if (file == 'mainFolder') return ['helm.exe' as unknown as fs.Dirent];
-        });
-        jest.spyOn(fs, 'statSync').mockImplementation((file) => {
-            const isDirectory = (file as string).indexOf('folder') == -1 ? false: true
-            return { isDirectory: () => isDirectory } as fs.Stats;
-        });
-        jest.spyOn(os, 'type').mockReturnValue('Windows_NT');
-
-        expect(run.findHelm('mainFolder')).toBe(path.join('mainFolder', 'helm.exe'));
-    });
-
-    test('findHelm() - throw error if executable not found', () => {
-        jest.spyOn(fs, 'chmodSync').mockImplementation(() => {});
-        jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
-            if (file == 'mainFolder') return [];
-        });
-        jest.spyOn(fs, 'statSync').mockImplementation((file) => { return { isDirectory: () => true } as fs.Stats});
-        jest.spyOn(os, 'type').mockReturnValue('Windows_NT');
-        expect(() => run.findHelm('mainFolder')).toThrow('Helm executable not found in path mainFolder');
-    });
-
-    test('downloadHelm() - download helm and return path to it', async () => {
-        jest.spyOn(toolCache, 'find').mockReturnValue('');
-        jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool');
-        const response = JSON.stringify([{'tag_name': 'v4.0.0'}]);
-        jest.spyOn(fs, 'readFileSync').mockReturnValue(response);
-        jest.spyOn(os, 'type').mockReturnValue('Windows_NT');
-        jest.spyOn(fs, 'chmodSync').mockImplementation(() => {});
-        jest.spyOn(toolCache, 'extractZip').mockResolvedValue('pathToUnzippedHelm');
-        jest.spyOn(toolCache, 'cacheDir').mockResolvedValue('pathToCachedDir');
-        jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => ['helm.exe' as unknown as fs.Dirent]);
-        jest.spyOn(fs, 'statSync').mockImplementation((file) => {
-            const isDirectory = (file as string).indexOf('folder') == -1 ? false: true
-            return { isDirectory: () =>  isDirectory } as fs.Stats;
-        });
-
-        expect(await run.downloadHelm("v4.0.0")).toBe(path.join('pathToCachedDir', 'helm.exe'));
-        expect(toolCache.find).toBeCalledWith('helm', 'v4.0.0');
-        expect(toolCache.downloadTool).toBeCalledWith('https://get.helm.sh/helm-v4.0.0-windows-amd64.zip');
-        expect(fs.chmodSync).toBeCalledWith('pathToTool', '777');
-        expect(toolCache.extractZip).toBeCalledWith('pathToTool');
-        expect(fs.chmodSync).toBeCalledWith(path.join('pathToCachedDir', 'helm.exe'), '777');
-    });
-
-    test('downloadHelm() - throw error if unable to download', async () => {
-        jest.spyOn(toolCache, 'find').mockReturnValue('');
-        jest.spyOn(toolCache, 'downloadTool').mockImplementation(async () => { throw 'Unable to download'});
-        jest.spyOn(os, 'type').mockReturnValue('Windows_NT');
-
-        await expect(run.downloadHelm('v3.2.1')).rejects.toThrow('Failed to download Helm from location https://get.helm.sh/helm-v3.2.1-windows-amd64.zip');
-        expect(toolCache.find).toBeCalledWith('helm', 'v3.2.1');
-        expect(toolCache.downloadTool).toBeCalledWith('https://get.helm.sh/helm-v3.2.1-windows-amd64.zip');
-    });
-
-    test('downloadHelm() - return path to helm tool with same version from toolCache', async () => {
-        jest.spyOn(toolCache, 'find').mockReturnValue('pathToCachedDir');
-        jest.spyOn(fs, 'chmodSync').mockImplementation(() => {});
-
-        expect(await run.downloadHelm('v3.2.1')).toBe(path.join('pathToCachedDir', 'helm.exe'));
-        expect(toolCache.find).toBeCalledWith('helm', 'v3.2.1');
-        expect(fs.chmodSync).toBeCalledWith(path.join('pathToCachedDir', 'helm.exe'), '777');
-    });
-
-    test('downloadHelm() - throw error is helm is not found in path', async () => {
-        jest.spyOn(toolCache, 'find').mockReturnValue('');
-        jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool');
-        jest.spyOn(os, 'type').mockReturnValue('Windows_NT');
-        jest.spyOn(fs, 'chmodSync').mockImplementation();
-        jest.spyOn(toolCache, 'extractZip').mockResolvedValue('pathToUnzippedHelm');
-        jest.spyOn(toolCache, 'cacheDir').mockResolvedValue('pathToCachedDir');
-        jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => []);
-        jest.spyOn(fs, 'statSync').mockImplementation((file) => {
-            const isDirectory = (file as string).indexOf('folder') == -1 ? false: true
-            return { isDirectory: () =>  isDirectory } as fs.Stats;
-        });
-
-        await expect(run.downloadHelm('v3.2.1')).rejects.toThrow('Helm executable not found in path pathToCachedDir');
-        expect(toolCache.find).toBeCalledWith('helm', 'v3.2.1');
-        expect(toolCache.downloadTool).toBeCalledWith('https://get.helm.sh/helm-v3.2.1-windows-amd64.zip');
-        expect(fs.chmodSync).toBeCalledWith('pathToTool', '777');
-        expect(toolCache.extractZip).toBeCalledWith('pathToTool');
-    });
-});  

action.yml

@@ -1,15 +1,24 @@
 name: 'Helm tool installer'
 description: 'Install a specific version of helm binary. Acceptable values are latest or any semantic version string like 1.15.0'
 inputs:
-  version:
-    description: 'Version of helm'
-    required: true
-    default: 'latest'
+   version:
+      description: 'Version of helm'
+      required: true
+      default: 'latest'
+   token:
+      description: GitHub token. Used to be required to fetch the latest version
+      required: false
+      deprecationMessage: 'GitHub token is no longer required'
+      default: '${{ github.token }}'
+   downloadBaseURL:
+      description: 'Set the download base URL'
+      required: false
+      default: 'https://get.helm.sh'
 outputs:
-  helm-path:
-    description: 'Path to the cached helm binary'
+   helm-path:
+      description: 'Path to the cached helm binary'
 branding:
-  color: 'blue'
+   color: 'blue'
 runs:
-  using: 'node12'
-  main: 'lib/run.js'
+   using: 'node20'
+   main: 'lib/index.js'

jest.config.js

@@ -1,18 +1,18 @@
 module.exports = {
-  clearMocks: true,
-  moduleFileExtensions: ['js', 'ts'],
-  testEnvironment: 'node',
-  testMatch: ['**/*.test.ts'],
-  transform: {
-    '^.+\\.ts$': 'ts-jest'
-  },
-  verbose: true,
-  coverageThreshold: {
-    "global": {
-      "branches": 0,
-      "functions": 14,
-      "lines": 27,
-      "statements": 27
-    }
-  }
-}
+   clearMocks: true,
+   moduleFileExtensions: ['js', 'ts'],
+   testEnvironment: 'node',
+   testMatch: ['**/*.test.ts'],
+   transform: {
+      '^.+\\.ts$': 'ts-jest'
+   },
+   verbose: true,
+   coverageThreshold: {
+      global: {
+         branches: 0,
+         functions: 14,
+         lines: 27,
+         statements: 27
+      }
+   }
+}

lib/run.js

@@ -1,142 +0,0 @@
-"use strict";
-// Copyright (c) Microsoft Corporation.
-// Copyright (c) Microsoft Corporation.
-// Licensed under the MIT license.
-var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
-    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
-    return new (P || (P = Promise))(function (resolve, reject) {
-        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
-        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
-        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
-        step((generator = generator.apply(thisArg, _arguments || [])).next());
-    });
-};
-Object.defineProperty(exports, "__esModule", { value: true });
-exports.walkSync = exports.findHelm = exports.downloadHelm = exports.getHelmDownloadURL = exports.getExecutableExtension = exports.getLatestHelmVersion = exports.run = void 0;
-const os = require("os");
-const path = require("path");
-const util = require("util");
-const fs = require("fs");
-const toolCache = require("@actions/tool-cache");
-const core = require("@actions/core");
-const helmToolName = 'helm';
-const stableHelmVersion = 'v3.8.0';
-const helmAllReleasesUrl = 'https://api.github.com/repos/helm/helm/releases';
-function run() {
-    return __awaiter(this, void 0, void 0, function* () {
-        let version = core.getInput('version', { 'required': true });
-        if (version.toLocaleLowerCase() === 'latest') {
-            version = yield getLatestHelmVersion();
-        }
-        core.debug(util.format("Downloading %s", version));
-        let cachedPath = yield downloadHelm(version);
-        try {
-            if (!process.env['PATH'].startsWith(path.dirname(cachedPath))) {
-                core.addPath(path.dirname(cachedPath));
-            }
-        }
-        catch (_a) {
-            //do nothing, set as output variable
-        }
-        console.log(`Helm tool version: '${version}' has been cached at ${cachedPath}`);
-        core.setOutput('helm-path', cachedPath);
-    });
-}
-exports.run = run;
-// Downloads the helm releases JSON and parses all the recent versions of helm from it. 
-// Defaults to sending stable helm version if none are valid or if it fails
-function getLatestHelmVersion() {
-    return __awaiter(this, void 0, void 0, function* () {
-        const helmJSONPath = yield toolCache.downloadTool(helmAllReleasesUrl);
-        try {
-            const helmJSON = JSON.parse(fs.readFileSync(helmJSONPath, 'utf-8'));
-            for (let i in helmJSON) {
-                if (isValidVersion(helmJSON[i].tag_name)) {
-                    return helmJSON[i].tag_name;
-                }
-            }
-        }
-        catch (err) {
-            core.warning(util.format("Error while fetching the latest Helm release. Error: %s. Using default Helm version %s", err.toString(), stableHelmVersion));
-            return stableHelmVersion;
-        }
-        return stableHelmVersion;
-    });
-}
-exports.getLatestHelmVersion = getLatestHelmVersion;
-// isValidVersion checks if verison is a stable release
-function isValidVersion(version) {
-    return version.indexOf('rc') == -1;
-}
-function getExecutableExtension() {
-    if (os.type().match(/^Win/)) {
-        return '.exe';
-    }
-    return '';
-}
-exports.getExecutableExtension = getExecutableExtension;
-function getHelmDownloadURL(version) {
-    switch (os.type()) {
-        case 'Linux':
-            return util.format('https://get.helm.sh/helm-%s-linux-amd64.zip', version);
-        case 'Darwin':
-            return util.format('https://get.helm.sh/helm-%s-darwin-amd64.zip', version);
-        case 'Windows_NT':
-        default:
-            return util.format('https://get.helm.sh/helm-%s-windows-amd64.zip', version);
-    }
-}
-exports.getHelmDownloadURL = getHelmDownloadURL;
-function downloadHelm(version) {
-    return __awaiter(this, void 0, void 0, function* () {
-        let cachedToolpath = toolCache.find(helmToolName, version);
-        if (!cachedToolpath) {
-            let helmDownloadPath;
-            try {
-                helmDownloadPath = yield toolCache.downloadTool(getHelmDownloadURL(version));
-            }
-            catch (exception) {
-                throw new Error(util.format("Failed to download Helm from location", getHelmDownloadURL(version)));
-            }
-            fs.chmodSync(helmDownloadPath, '777');
-            const unzipedHelmPath = yield toolCache.extractZip(helmDownloadPath);
-            cachedToolpath = yield toolCache.cacheDir(unzipedHelmPath, helmToolName, version);
-        }
-        const helmpath = findHelm(cachedToolpath);
-        if (!helmpath) {
-            throw new Error(util.format("Helm executable not found in path", cachedToolpath));
-        }
-        fs.chmodSync(helmpath, '777');
-        return helmpath;
-    });
-}
-exports.downloadHelm = downloadHelm;
-function findHelm(rootFolder) {
-    fs.chmodSync(rootFolder, '777');
-    var filelist = [];
-    exports.walkSync(rootFolder, filelist, helmToolName + getExecutableExtension());
-    if (!filelist || filelist.length == 0) {
-        throw new Error(util.format("Helm executable not found in path", rootFolder));
-    }
-    else {
-        return filelist[0];
-    }
-}
-exports.findHelm = findHelm;
-exports.walkSync = function (dir, filelist, fileToFind) {
-    var files = fs.readdirSync(dir);
-    filelist = filelist || [];
-    files.forEach(function (file) {
-        if (fs.statSync(path.join(dir, file)).isDirectory()) {
-            filelist = exports.walkSync(path.join(dir, file), filelist, fileToFind);
-        }
-        else {
-            core.debug(file);
-            if (file == fileToFind) {
-                filelist.push(path.join(dir, file));
-            }
-        }
-    });
-    return filelist;
-};
-run().catch(core.setFailed);

package.json

@@ -1,29 +1,35 @@
 {
-    "name": "setuphelm",
-    "version": "0.0.0",
-    "private": true,
-    "description": "Setup helm",
-    "author": "Anumita Shenoy",
-    "license": "MIT",
-    "dependencies": {
-        "@actions/core": "^1.2.6",
-        "@actions/exec": "^1.0.0",
-        "@actions/io": "^1.0.0",
-        "@actions/tool-cache": "1.1.2",
-        "@octokit/graphql": "^4.6.1",
-        "semver": "^6.1.0"
-    },
-    "main": "lib/run.js",
-    "scripts": {
-        "build": "tsc --outDir ./lib --rootDir ./src",
-        "test": "jest",
-        "test-coverage": "jest --coverage"
-    },
-    "devDependencies": {
-        "@types/node": "^12.0.10",
-        "typescript": "^3.5.2",
-        "jest": "^26.0.1",
-        "@types/jest": "^25.2.2",
-        "ts-jest": "^25.5.1"
-    }
+   "name": "setuphelm",
+   "version": "4.2.0",
+   "private": true,
+   "description": "Setup helm",
+   "author": "Anumita Shenoy",
+   "license": "MIT",
+   "dependencies": {
+      "@actions/core": "^1.10.0",
+      "@actions/exec": "^1.1.1",
+      "@actions/io": "^1.1.2",
+      "@actions/tool-cache": "2.0.1",
+      "@octokit/action": "^6.0.7",
+      "ncc": "^0.3.6",
+      "semver": "^7.5.4"
+   },
+   "main": "lib/index.js",
+   "scripts": {
+      "prebuild": "npm i ncc",
+      "build": "ncc build src/run.ts -o lib",
+      "test": "jest",
+      "test-coverage": "jest --coverage",
+      "format": "prettier --write .",
+      "format-check": "prettier --check ."
+   },
+   "devDependencies": {
+      "@types/jest": "^29.5.11",
+      "@types/node": "^20.11.8",
+      "@vercel/ncc": "^0.38.1",
+      "jest": "^29.7.0",
+      "prettier": "^3.2.5",
+      "ts-jest": "^29.1.2",
+      "typescript": "^5.3.3"
+   }
 }

src/run.test.ts

@@ -0,0 +1,299 @@
+import * as run from './run'
+import * as os from 'os'
+import * as toolCache from '@actions/tool-cache'
+import * as fs from 'fs'
+import * as path from 'path'
+import * as core from '@actions/core'
+
+describe('run.ts', () => {
+   const downloadBaseURL = 'https://test.tld'
+
+   // Cleanup mocks after each test to ensure that subsequent tests are not affected by the mocks.
+   afterEach(() => {
+      jest.restoreAllMocks()
+   })
+
+   test('getExecutableExtension() - return .exe when os is Windows', () => {
+      jest.spyOn(os, 'platform').mockReturnValue('win32')
+
+      expect(run.getExecutableExtension()).toBe('.exe')
+      expect(os.platform).toHaveBeenCalled()
+   })
+
+   test('getExecutableExtension() - return empty string for non-windows OS', () => {
+      jest.spyOn(os, 'platform').mockReturnValue('darwin')
+
+      expect(run.getExecutableExtension()).toBe('')
+      expect(os.platform).toHaveBeenCalled()
+   })
+
+   test('getHelmDownloadURL() - return the URL to download helm for Linux amd64', () => {
+      jest.spyOn(os, 'platform').mockReturnValue('linux')
+      jest.spyOn(os, 'arch').mockReturnValue('x64')
+      const expected = 'https://test.tld/helm-v3.8.0-linux-amd64.tar.gz'
+
+      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
+      expect(os.platform).toHaveBeenCalled()
+      expect(os.arch).toHaveBeenCalled()
+   })
+
+   test('getHelmDownloadURL() - return the URL to download helm for Linux arm64', () => {
+      jest.spyOn(os, 'platform').mockReturnValue('linux')
+      jest.spyOn(os, 'arch').mockReturnValue('arm64')
+      const expected = 'https://test.tld/helm-v3.8.0-linux-arm64.tar.gz'
+
+      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
+      expect(os.platform).toHaveBeenCalled()
+      expect(os.arch).toHaveBeenCalled()
+   })
+
+   test('getHelmDownloadURL() - return the URL to download helm for Darwin x64', () => {
+      jest.spyOn(os, 'platform').mockReturnValue('darwin')
+      jest.spyOn(os, 'arch').mockReturnValue('x64')
+      const expected = 'https://test.tld/helm-v3.8.0-darwin-amd64.tar.gz'
+
+      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
+      expect(os.platform).toHaveBeenCalled()
+      expect(os.arch).toHaveBeenCalled()
+   })
+
+   test('getHelmDownloadURL() - return the URL to download helm for Darwin arm64', () => {
+      jest.spyOn(os, 'platform').mockReturnValue('darwin')
+      jest.spyOn(os, 'arch').mockReturnValue('arm64')
+      const expected = 'https://test.tld/helm-v3.8.0-darwin-arm64.tar.gz'
+
+      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
+      expect(os.platform).toHaveBeenCalled()
+      expect(os.arch).toHaveBeenCalled()
+   })
+
+   test('getHelmDownloadURL() - return the URL to download helm for Windows', () => {
+      jest.spyOn(os, 'platform').mockReturnValue('win32')
+      jest.spyOn(os, 'arch').mockReturnValue('x64')
+
+      const expected = 'https://test.tld/helm-v3.8.0-windows-amd64.zip'
+      expect(run.getHelmDownloadURL(downloadBaseURL, 'v3.8.0')).toBe(expected)
+      expect(os.platform).toHaveBeenCalled()
+   })
+
+   test('getLatestHelmVersion() - return the latest version of HELM', async () => {
+      const res = {
+         status: 200,
+         text: async () => 'v9.99.999'
+      } as Response
+      global.fetch = jest.fn().mockReturnValue(res)
+      expect(await run.getLatestHelmVersion()).toBe('v9.99.999')
+   })
+
+   test('getLatestHelmVersion() - return the stable version of HELM when simulating a network error', async () => {
+      const errorMessage: string = 'Network Error'
+      global.fetch = jest.fn().mockRejectedValueOnce(new Error(errorMessage))
+      expect(await run.getLatestHelmVersion()).toBe('v3.13.3')
+   })
+
+   test('getValidVersion() - return version with v prepended', () => {
+      expect(run.getValidVersion('3.8.0')).toBe('v3.8.0')
+   })
+
+   test('walkSync() - return path to the all files matching fileToFind in dir', () => {
+      jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
+         if (file == 'mainFolder')
+            return [
+               'file1' as unknown as fs.Dirent,
+               'file2' as unknown as fs.Dirent,
+               'folder1' as unknown as fs.Dirent,
+               'folder2' as unknown as fs.Dirent
+            ]
+         if (file == path.join('mainFolder', 'folder1'))
+            return [
+               'file11' as unknown as fs.Dirent,
+               'file12' as unknown as fs.Dirent
+            ]
+         if (file == path.join('mainFolder', 'folder2'))
+            return [
+               'file21' as unknown as fs.Dirent,
+               'file22' as unknown as fs.Dirent
+            ]
+         return []
+      })
+      jest.spyOn(core, 'debug').mockImplementation()
+      jest.spyOn(fs, 'statSync').mockImplementation((file) => {
+         const isDirectory =
+            (file as string).toLowerCase().indexOf('file') == -1 ? true : false
+         return {isDirectory: () => isDirectory} as fs.Stats
+      })
+
+      expect(run.walkSync('mainFolder', null, 'file21')).toEqual([
+         path.join('mainFolder', 'folder2', 'file21')
+      ])
+      expect(fs.readdirSync).toHaveBeenCalledTimes(3)
+      expect(fs.statSync).toHaveBeenCalledTimes(8)
+   })
+
+   test('walkSync() - return empty array if no file with name fileToFind exists', () => {
+      jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
+         if (file == 'mainFolder')
+            return [
+               'file1' as unknown as fs.Dirent,
+               'file2' as unknown as fs.Dirent,
+               'folder1' as unknown as fs.Dirent,
+               'folder2' as unknown as fs.Dirent
+            ]
+         if (file == path.join('mainFolder', 'folder1'))
+            return [
+               'file11' as unknown as fs.Dirent,
+               'file12' as unknown as fs.Dirent
+            ]
+         if (file == path.join('mainFolder', 'folder2'))
+            return [
+               'file21' as unknown as fs.Dirent,
+               'file22' as unknown as fs.Dirent
+            ]
+         return []
+      })
+      jest.spyOn(core, 'debug').mockImplementation()
+      jest.spyOn(fs, 'statSync').mockImplementation((file) => {
+         const isDirectory =
+            (file as string).toLowerCase().indexOf('file') == -1 ? true : false
+         return {isDirectory: () => isDirectory} as fs.Stats
+      })
+
+      expect(run.walkSync('mainFolder', null, 'helm.exe')).toEqual([])
+      expect(fs.readdirSync).toHaveBeenCalledTimes(3)
+      expect(fs.statSync).toHaveBeenCalledTimes(8)
+   })
+
+   test('findHelm() - change access permissions and find the helm in given directory', () => {
+      jest.spyOn(fs, 'chmodSync').mockImplementation(() => {})
+      jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
+         if (file == 'mainFolder') return ['helm.exe' as unknown as fs.Dirent]
+         return []
+      })
+      jest.spyOn(fs, 'statSync').mockImplementation((file) => {
+         const isDirectory =
+            (file as string).indexOf('folder') == -1 ? false : true
+         return {isDirectory: () => isDirectory} as fs.Stats
+      })
+      jest.spyOn(os, 'platform').mockReturnValue('win32')
+
+      expect(run.findHelm('mainFolder')).toBe(
+         path.join('mainFolder', 'helm.exe')
+      )
+   })
+
+   test('findHelm() - throw error if executable not found', () => {
+      jest.spyOn(fs, 'chmodSync').mockImplementation(() => {})
+      jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => {
+         if (file == 'mainFolder') return []
+         return []
+      })
+      jest.spyOn(fs, 'statSync').mockImplementation((file) => {
+         return {isDirectory: () => true} as fs.Stats
+      })
+      jest.spyOn(os, 'platform').mockReturnValue('win32')
+
+      expect(() => run.findHelm('mainFolder')).toThrow(
+         'Helm executable not found in path mainFolder'
+      )
+   })
+
+   test('downloadHelm() - download helm and return path to it', async () => {
+      jest.spyOn(toolCache, 'find').mockReturnValue('')
+      jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool')
+      const response = JSON.stringify([{tag_name: 'v4.0.0'}])
+      jest.spyOn(fs, 'readFileSync').mockReturnValue(response)
+      jest.spyOn(os, 'platform').mockReturnValue('win32')
+      jest.spyOn(fs, 'chmodSync').mockImplementation(() => {})
+      jest.spyOn(toolCache, 'extractZip').mockResolvedValue('extractedPath')
+      jest.spyOn(toolCache, 'cacheDir').mockResolvedValue('pathToCachedDir')
+      jest
+         .spyOn(fs, 'readdirSync')
+         .mockImplementation((file, _) => ['helm.exe' as unknown as fs.Dirent])
+      jest.spyOn(fs, 'statSync').mockImplementation((file) => {
+         const isDirectory =
+            (file as string).indexOf('folder') == -1 ? false : true
+         return {isDirectory: () => isDirectory} as fs.Stats
+      })
+
+      expect(await run.downloadHelm(downloadBaseURL, 'v4.0.0')).toBe(
+         path.join('pathToCachedDir', 'helm.exe')
+      )
+      expect(toolCache.find).toHaveBeenCalledWith('helm', 'v4.0.0')
+      expect(toolCache.downloadTool).toHaveBeenCalledWith(
+         'https://test.tld/helm-v4.0.0-windows-amd64.zip'
+      )
+      expect(fs.chmodSync).toHaveBeenCalledWith('pathToTool', '777')
+      expect(toolCache.extractZip).toHaveBeenCalledWith('pathToTool')
+      expect(fs.chmodSync).toHaveBeenCalledWith(
+         path.join('pathToCachedDir', 'helm.exe'),
+         '777'
+      )
+   })
+
+   test('downloadHelm() - throw error if unable to download', async () => {
+      jest.spyOn(toolCache, 'find').mockReturnValue('')
+      jest.spyOn(toolCache, 'downloadTool').mockImplementation(async () => {
+         throw 'Unable to download'
+      })
+      jest.spyOn(os, 'platform').mockReturnValue('win32')
+
+      const downloadUrl = 'https://test.tld/helm-v3.2.1-windows-amd64.zip'
+      await expect(run.downloadHelm(downloadBaseURL, 'v3.2.1')).rejects.toThrow(
+         `Failed to download Helm from location ${downloadUrl}`
+      )
+      expect(toolCache.find).toHaveBeenCalledWith('helm', 'v3.2.1')
+      expect(toolCache.downloadTool).toHaveBeenCalledWith(`${downloadUrl}`)
+   })
+
+   test('downloadHelm() - return path to helm tool with same version from toolCache', async () => {
+      jest.spyOn(toolCache, 'find').mockReturnValue('pathToCachedDir')
+      jest.spyOn(toolCache, 'cacheDir').mockResolvedValue('pathToCachedDir')
+      jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool')
+      jest.spyOn(toolCache, 'extractZip').mockResolvedValue('extractedPath')
+      jest.spyOn(os, 'platform').mockReturnValue('win32')
+      jest.spyOn(fs, 'chmodSync').mockImplementation(() => {})
+      jest
+         .spyOn(fs, 'readdirSync')
+         .mockReturnValue(['helm.exe' as unknown as fs.Dirent])
+      jest.spyOn(fs, 'statSync').mockImplementation((file) => {
+         const isDirectory =
+            (file as string).indexOf('folder') == -1 ? false : true
+         return {isDirectory: () => isDirectory} as fs.Stats
+      })
+
+      expect(await run.downloadHelm(downloadBaseURL, 'v3.2.1')).toBe(
+         path.join('pathToCachedDir', 'helm.exe')
+      )
+      expect(toolCache.find).toHaveBeenCalledWith('helm', 'v3.2.1')
+      expect(fs.chmodSync).toHaveBeenCalledWith(
+         path.join('pathToCachedDir', 'helm.exe'),
+         '777'
+      )
+   })
+
+   test('downloadHelm() - throw error is helm is not found in path', async () => {
+      jest.spyOn(toolCache, 'find').mockReturnValue('')
+      jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool')
+      jest.spyOn(toolCache, 'cacheDir').mockResolvedValue('pathToCachedDir')
+      jest.spyOn(toolCache, 'downloadTool').mockResolvedValue('pathToTool')
+      jest.spyOn(toolCache, 'extractZip').mockResolvedValue('extractedPath')
+      jest.spyOn(os, 'platform').mockReturnValue('win32')
+      jest.spyOn(fs, 'chmodSync').mockImplementation()
+      jest.spyOn(fs, 'readdirSync').mockImplementation((file, _) => [])
+      jest.spyOn(fs, 'statSync').mockImplementation((file) => {
+         const isDirectory =
+            (file as string).indexOf('folder') == -1 ? false : true
+         return {isDirectory: () => isDirectory} as fs.Stats
+      })
+
+      await expect(run.downloadHelm(downloadBaseURL, 'v3.2.1')).rejects.toThrow(
+         'Helm executable not found in path pathToCachedDir'
+      )
+      expect(toolCache.find).toHaveBeenCalledWith('helm', 'v3.2.1')
+      expect(toolCache.downloadTool).toHaveBeenCalledWith(
+         'https://test.tld/helm-v3.2.1-windows-amd64.zip'
+      )
+      expect(fs.chmodSync).toHaveBeenCalledWith('pathToTool', '777')
+      expect(toolCache.extractZip).toHaveBeenCalledWith('pathToTool')
+   })
+})

src/run.ts

@@ -2,140 +2,158 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
-import * as os from 'os';
-import * as path from 'path';
-import * as util from 'util';
-import * as fs from 'fs';
+import * as os from 'os'
+import * as path from 'path'
+import * as util from 'util'
+import * as fs from 'fs'
 
-import * as toolCache from '@actions/tool-cache';
-import * as core from '@actions/core';
+import * as toolCache from '@actions/tool-cache'
+import * as core from '@actions/core'
 
-const helmToolName = 'helm';
-const stableHelmVersion = 'v3.8.0';
-const helmAllReleasesUrl = 'https://api.github.com/repos/helm/helm/releases';
+const helmToolName = 'helm'
+const stableHelmVersion = 'v3.13.3'
 
 export async function run() {
-    let version = core.getInput('version', { 'required': true });
+   let version = core.getInput('version', {required: true})
 
-    if (version.toLocaleLowerCase() === 'latest') {
-        version = await getLatestHelmVersion();
-    }
+   if (version !== 'latest' && version[0] !== 'v') {
+      core.info('Getting latest Helm version')
+      version = getValidVersion(version)
+   }
+   if (version.toLocaleLowerCase() === 'latest') {
+      version = await getLatestHelmVersion()
+   }
 
-    core.debug(util.format("Downloading %s", version));
-    let cachedPath = await downloadHelm(version);
+   const downloadBaseURL = core.getInput('downloadBaseURL', {required: false})
 
-    try {
+   core.startGroup(`Downloading ${version}`)
+   const cachedPath = await downloadHelm(downloadBaseURL, version)
+   core.endGroup()
 
-        if (!process.env['PATH'].startsWith(path.dirname(cachedPath))) {
-            core.addPath(path.dirname(cachedPath));
-        }
-    }
-    catch {
-        //do nothing, set as output variable
-    }
+   try {
+      if (!process.env['PATH'].startsWith(path.dirname(cachedPath))) {
+         core.addPath(path.dirname(cachedPath))
+      }
+   } catch {
+      //do nothing, set as output variable
+   }
 
-    console.log(`Helm tool version: '${version}' has been cached at ${cachedPath}`);
-    core.setOutput('helm-path', cachedPath);
+   core.info(`Helm tool version '${version}' has been cached at ${cachedPath}`)
+   core.setOutput('helm-path', cachedPath)
 }
 
-// Downloads the helm releases JSON and parses all the recent versions of helm from it. 
-// Defaults to sending stable helm version if none are valid or if it fails
+// Prefixes version with v
+export function getValidVersion(version: string): string {
+   return 'v' + version
+}
 
+// Gets the latest helm version or returns a default stable if getting latest fails
 export async function getLatestHelmVersion(): Promise<string> {
-    const helmJSONPath: string = await toolCache.downloadTool(helmAllReleasesUrl);
-    
-    try {
-        const helmJSON = JSON.parse(fs.readFileSync(helmJSONPath, 'utf-8'))
-        for(let i in helmJSON) {
-            if(isValidVersion(helmJSON[i].tag_name)) {
-                return helmJSON[i].tag_name;
-            }
-        }
-    } catch(err) {
-        core.warning(util.format("Error while fetching the latest Helm release. Error: %s. Using default Helm version %s", err.toString(), stableHelmVersion));
-        return stableHelmVersion;
-    }
-    
-    return stableHelmVersion;
+   try {
+      const response = await fetch('https://get.helm.sh/helm-latest-version')
+      const release = (await response.text()).trim()
+      return release
+   } catch (err) {
+      core.warning(
+         `Error while fetching latest Helm release: ${err.toString()}. Using default version ${stableHelmVersion}`
+      )
+      return stableHelmVersion
+   }
 }
 
-// isValidVersion checks if verison is a stable release
-function isValidVersion(version: string): boolean {
-    return version.indexOf('rc') == -1;
+export function getArch(): string {
+   return os.arch() === 'x64' ? 'amd64' : os.arch()
+}
+
+export function getPlatform(): string {
+   return os.platform() === 'win32' ? 'windows' : os.platform()
+}
+
+export function getArchiveExtension(): string {
+   return os.platform() === 'win32' ? 'zip' : 'tar.gz'
 }
 
 export function getExecutableExtension(): string {
-    if (os.type().match(/^Win/)) {
-        return '.exe';
-    }
-    return '';
+   return os.platform() === 'win32' ? '.exe' : ''
 }
 
-export function getHelmDownloadURL(version: string): string {
-    switch (os.type()) {
-        case 'Linux':
-            return util.format('https://get.helm.sh/helm-%s-linux-amd64.zip', version);
-
-        case 'Darwin':
-            return util.format('https://get.helm.sh/helm-%s-darwin-amd64.zip', version);
-
-        case 'Windows_NT':
-        default:
-            return util.format('https://get.helm.sh/helm-%s-windows-amd64.zip', version);
-    }
+export function getHelmDownloadURL(baseURL: string, version: string): string {
+   const urlPath = `helm-${version}-${getPlatform()}-${getArch()}.${getArchiveExtension()}`
+   const url = new URL(urlPath, baseURL)
+   return url.toString()
 }
 
-export async function downloadHelm(version: string): Promise<string> {
-    let cachedToolpath = toolCache.find(helmToolName, version);
-    if (!cachedToolpath) {
-        let helmDownloadPath;
-        try {
-            helmDownloadPath = await toolCache.downloadTool(getHelmDownloadURL(version));
-        } catch (exception) {
-            throw new Error(util.format("Failed to download Helm from location", getHelmDownloadURL(version)));
-        }
+export async function downloadHelm(
+   baseURL: string,
+   version: string
+): Promise<string> {
+   let cachedToolpath = toolCache.find(helmToolName, version)
+   if (!cachedToolpath) {
+      let helmDownloadPath
+      try {
+         helmDownloadPath = await toolCache.downloadTool(
+            getHelmDownloadURL(baseURL, version)
+         )
+      } catch (exception) {
+         throw new Error(
+            `Failed to download Helm from location ${getHelmDownloadURL(
+               baseURL,
+               version
+            )}`
+         )
+      }
 
-        fs.chmodSync(helmDownloadPath, '777');
-        const unzipedHelmPath = await toolCache.extractZip(helmDownloadPath);
-        cachedToolpath = await toolCache.cacheDir(unzipedHelmPath, helmToolName, version);
-    }
+      fs.chmodSync(helmDownloadPath, '777')
+      const extractedPath =
+         getPlatform() === 'windows'
+            ? await toolCache.extractZip(helmDownloadPath)
+            : await toolCache.extractTar(helmDownloadPath)
 
-    const helmpath = findHelm(cachedToolpath);
-    if (!helmpath) {
-        throw new Error(util.format("Helm executable not found in path", cachedToolpath));
-    }
+      cachedToolpath = await toolCache.cacheDir(
+         extractedPath,
+         helmToolName,
+         version
+      )
+   }
 
-    fs.chmodSync(helmpath, '777');
-    return helmpath;
+   const helmpath = findHelm(cachedToolpath)
+   if (!helmpath) {
+      throw new Error(
+         util.format('Helm executable not found in path', cachedToolpath)
+      )
+   }
+
+   fs.chmodSync(helmpath, '777')
+   return helmpath
 }
 
 export function findHelm(rootFolder: string): string {
-    fs.chmodSync(rootFolder, '777');
-    var filelist: string[] = [];
-    walkSync(rootFolder, filelist, helmToolName + getExecutableExtension());
-    if (!filelist || filelist.length == 0) {
-        throw new Error(util.format("Helm executable not found in path", rootFolder));
-    }
-    else {
-        return filelist[0];
-    }
+   fs.chmodSync(rootFolder, '777')
+   var filelist: string[] = []
+   walkSync(rootFolder, filelist, helmToolName + getExecutableExtension())
+   if (!filelist || filelist.length == 0) {
+      throw new Error(
+         util.format('Helm executable not found in path', rootFolder)
+      )
+   } else {
+      return filelist[0]
+   }
 }
 
 export var walkSync = function (dir, filelist, fileToFind) {
-    var files = fs.readdirSync(dir);
-    filelist = filelist || [];
-    files.forEach(function (file) {
-        if (fs.statSync(path.join(dir, file)).isDirectory()) {
-            filelist = walkSync(path.join(dir, file), filelist, fileToFind);
-        }
-        else {
-            core.debug(file);
-            if (file == fileToFind) {
-                filelist.push(path.join(dir, file));
-            }
-        }
-    });
-    return filelist;
-};
+   var files = fs.readdirSync(dir)
+   filelist = filelist || []
+   files.forEach(function (file) {
+      if (fs.statSync(path.join(dir, file)).isDirectory()) {
+         filelist = walkSync(path.join(dir, file), filelist, fileToFind)
+      } else {
+         core.debug(file)
+         if (file == fileToFind) {
+            filelist.push(path.join(dir, file))
+         }
+      }
+   })
+   return filelist
+}
 
-run().catch(core.setFailed);
+run().catch(core.setFailed)

tsconfig.json

@@ -1,64 +1,64 @@
 {
-  "compilerOptions": {
-    /* Basic Options */
-    // "incremental": true,                   /* Enable incremental compilation */
-    "target": "es6",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
-    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
-    // "allowJs": true,                       /* Allow javascript files to be compiled. */
-    // "checkJs": true,                       /* Report errors in .js files. */
-    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
-    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
-    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
-    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
-    // "outFile": "./",                       /* Concatenate and emit output to single file. */
-    "outDir": "./lib",                        /* Redirect output structure to the directory. */
-    "rootDir": "./src",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
-    // "composite": true,                     /* Enable project compilation */
-    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
-    // "removeComments": true,                /* Do not emit comments to output. */
-    // "noEmit": true,                        /* Do not emit outputs. */
-    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
-    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
-    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+   "compilerOptions": {
+      /* Basic Options */
+      // "incremental": true,                   /* Enable incremental compilation */
+      "target": "es6" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
+      "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
+      // "allowJs": true,                       /* Allow javascript files to be compiled. */
+      // "checkJs": true,                       /* Report errors in .js files. */
+      // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+      // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+      // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+      // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+      // "outFile": "./",                       /* Concatenate and emit output to single file. */
+      "outDir": "./lib" /* Redirect output structure to the directory. */,
+      "rootDir": "./src" /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */,
+      // "composite": true,                     /* Enable project compilation */
+      // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
+      // "removeComments": true,                /* Do not emit comments to output. */
+      // "noEmit": true,                        /* Do not emit outputs. */
+      // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+      // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+      // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
 
-    /* Strict Type-Checking Options */
-    //"strict": true,                           /* Enable all strict type-checking options. */
-    "noImplicitAny": false,                 /* Raise error on expressions and declarations with an implied 'any' type. */
-    // "strictNullChecks": true,              /* Enable strict null checks. */
-    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
-    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
-    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
-    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
-    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+      /* Strict Type-Checking Options */
+      //"strict": true,                           /* Enable all strict type-checking options. */
+      "noImplicitAny": false /* Raise error on expressions and declarations with an implied 'any' type. */,
+      // "strictNullChecks": true,              /* Enable strict null checks. */
+      // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+      // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
+      // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+      // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+      // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
 
-    /* Additional Checks */
-    // "noUnusedLocals": true,                /* Report errors on unused locals. */
-    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
-    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
-    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+      /* Additional Checks */
+      // "noUnusedLocals": true,                /* Report errors on unused locals. */
+      // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+      // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+      // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
 
-    /* Module Resolution Options */
-    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
-    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
-    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
-    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
-    // "typeRoots": [],                       /* List of folders to include type definitions from. */
-    // "types": [],                           /* Type declaration files to be included in compilation. */
-    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
-    // "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
-    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
-    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
+      /* Module Resolution Options */
+      // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+      // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+      // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+      // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+      // "typeRoots": [],                       /* List of folders to include type definitions from. */
+      // "types": [],                           /* Type declaration files to be included in compilation. */
+      // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+      // "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+      // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+      // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */
 
-    /* Source Map Options */
-    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
-    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
-    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
-    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+      /* Source Map Options */
+      // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+      // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+      // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+      // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
 
-    /* Experimental Options */
-    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
-    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
-    "skipLibCheck": true
-  },
-  "exclude": ["node_modules", "**/*.test.ts"]
+      /* Experimental Options */
+      // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+      // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+      "skipLibCheck": true
+   },
+   "exclude": ["node_modules", "**/*.test.ts"]
 }